4245239 has 2 divisors, whose sum is σ = 4245240. Its totient is φ = 4245238.

The previous prime is 4245217. The next prime is 4245259. The reversal of 4245239 is 9325424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4245239 - 2⁸ = 4244983 is a prime.

It is a d-powerful number, because it can be written as 4² + 2¹⁷ + 4⁶ + 5⁹ + 2²¹ + 3¹⁰ + 9³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4245209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122619 + 2122620.

It is an arithmetic number, because the mean of its divisors is an integer number (2122620).

Almost surely, 2^4245239 is an apocalyptic number.

4245239 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245239 is an equidigital number, since it uses as much as digits as its factorization.

4245239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 4245239 is about 2060.3977771295. The cubic root of 4245239 is about 161.9200820058.

The spelling of 4245239 in words is "four million, two hundred forty-five thousand, two hundred thirty-nine".